ABB jshd4-2-ab Enabling Switch

Why Choose the ABB JSHD4-2-AB 2TLA019995R0200 Enabling Switch?

The ABB JSHD4-2-AB 2TLA019995R0200 is an ergonomic three-position safety enabling switch designed to permit controlled machine movement when an operator needs to work within or close to a hazardous area. Part of the ABB Jokab Safety JSHD4 range, it is intended for applications such as troubleshooting, test running, programming, commissioning and machine adjustment where restricted operation is required under direct operator control.

The JSHD4 three-position operating principle allows machinery to be enabled only while the operator deliberately holds the main actuator in its centre operating position. Releasing the actuator or squeezing it fully into the third position changes the enabling contacts so the connected safety system can stop or inhibit hazardous movement. The JSHD4-2 configuration also incorporates top and front push-buttons plus red and green LED indication, providing additional control and signalling functions directly at the handheld device.

The JSHD4-2-AB combines the JSHD4-2 top section with the ABB AB bottom section, providing a Cannon 12-pin male connector for connection to the machine control system. Rated for 24 V DC operation and protected to IP65, it provides a robust handheld interface for machine setup and maintenance applications in demanding industrial environments.

Key Advantages

• Ergonomic three-position enabling device for controlled machine operation in hazardous areas.
• Machine enabling occurs only while the operator deliberately maintains the permitted centre position.
• Releasing or fully depressing the actuator changes the safety contacts to initiate a safe response through the connected safety system.
• Integrated front and top push-buttons provide additional operator control functions.
• Integrated red and green LEDs provide convenient local status indication.
• Cannon 12-pin male connector provides a multi-pole interface for enabling, push-button and LED circuits.
• IP65 protection supports operation in demanding industrial environments.
• Ideal for troubleshooting, programming, test running, commissioning and machine adjustment.

Key Features

• ABB Jokab Safety JSHD4 three-position enabling switch.
• JSHD4-2 top section with top push-button, front push-button and LEDs.
• AB bottom section with Cannon connector.
• Cannon 12-pin male connection.
• Three operating positions: released, enabled and fully depressed.
• Two independent enabling contact channels.
• 2 changeover contact circuits for the three-position enabling function.
• Integrated red and green LED indication.
• Rated operational voltage of 24 V DC.
• Rated operational current of 0.02 A at 24 V DC.
• Approximate operating force of 15 N for the enabling ON position.
• Approximate operating force of 45 N for the fully depressed OFF position.
• Approximate push-button operating force of 2.5 N.
• IP65 degree of protection.

Three-Position Enabling Control with Integrated Operator Functions

Three-position enabling switches are used when an operator needs limited machine movement while normal safeguarding measures may be open or bypassed for an authorised task. With the ABB JSHD4-2-AB, machine operation can be permitted while the main actuator is deliberately held in its centre position. If the operator releases the device or instinctively squeezes it fully, the enabling contacts change state so the connected safety control system can stop hazardous movement.

The JSHD4-2-AB extends this principle with top and front push-buttons plus integrated red and green LEDs, allowing additional machine commands and status indication to be incorporated into the handheld control device. The Cannon 12-pin connector provides the connections required for these functions, making the unit particularly suitable for machine setup, teaching, commissioning and maintenance stations requiring more functionality than a basic enabling switch.

Typical Applications

• Machine troubleshooting and fault finding.
• Test running of industrial machinery.
• Machine programming and teaching operations.
• Commissioning and setup procedures.
• Maintenance requiring controlled machine movement.
• Adjustment of automated production equipment.
• Robot and automation cell setup activities.
• Applications requiring local push-button controls and LED indication alongside three-position enabling.